Lubricating device.



PATENTEID MAR. 29, 1904:.v

B. P. CAMPBELL; LUBRIGATING DEVICE.

APPLIO ATION FILED JAN. 30' 1904.

10 MODEL.

j N LTN 1 v WITNESSES- Arm/ME) UNIT D STATES-7 Patented March 29, 1904.

PATENT ()FFICE.

.ONE-HALF TO JOHN E. COATES, OF LITTLE RQOK, ARKANSAS.

LUBRICATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 755,741,:1ated. March 29, 1904.

Application filed January 30,1904. Se rial No.191,249. (No model.)

To all whom, it natty concern;

Be it known thatI, BENJAMINF. CAMPBELL, a citizen of the United States, residing at Little Rock, in the county of Pulaski and State of Arkansas, have invented certain new and useful Improvements in Lubricating Devices, of

stance, the steam chest or cylinder of a steam engine and their coacting elements; and the object of the present invention is to provide a simple device of this character which will enable a definite charge of lubricant to be forcibly fed to the parts to be lubricated at desired times.

With these general objects in view the invention consists of the parts and combinations, as hereinafter set forth, and more particularly defined in the claims. A

In the drawings, Figure 1 is a longitudinal section of a device embodying my present invention, showing parts broken away and the reservoir in elevation. Fig. 2 is aside elevation of the device represented in Fig. 1 with the handle turned to a lower position. Fig. 3 is a transverse section on the line 00 a; of Fig. 1, showing reservoir in elevation.

In the drawings, A represents any suitable form of reservoir or lubricant cup having a usual cover B, and extending downward from the reservoir or cup A is the pipe connection C.

Disposed, preferably, below the reservoir or' cup A is the valve or plug andits casing, the

latter being provided, preferably, with a valve seat or bore tapering from the one end to the other. The casing E may be formed of asingle piece of metal, as shown in Fig. 1, which is bored longitudinally of its length to provide a tapering seat for the valve or plug D, which is also correspondingly tapered to fit the seat thus formed. It will be noted that the casing E is preferably not bored its entire length, so that thereby simplicity of construction is secured as an incident of its formation. The opposite end of the casing E from the closed end E, is provided with the cover or s cap e, which may be secured to the end of the casing in any suitable manner, as by screwthreads or the like. Disposed within the casing E is the tapering valve or plug D, having a lubricant-charging chamber F bored or formed diametrically through the plug, as shown. Connected to the casing at suitable points on opposite sides thereof are the pipe connections 9 and f, the former leading to a suitable air or other fluid supply and the latter.

leading to the steam-chest or other parts to be lubricated. 7

From the construction thus far described it will be seen that when the plug or valve D is in the position shown in Fig. 1, with the lubricant-chargingchamber F of the plug in communication with the pipe connection C, lubricant will by gravity drop into and fill the lubricant-charging chamber F, and when the valve or plug D is in such position the solid walls of the plug interrupt communication between the pipes g and f. Should the plug or valve D be then turned into the position, for instance, shown in Fig. 3, the lubricant-charging chamber F will be brought into communication with the former and communication between the pipes g and f, at which time also the solid walls of the valve or plug D will interruptcommunication with the lubricant reservoir or cup A. The parts being in the position described and shown in Fig. 3, if air or other fluid pressure be introduced through pipe g it will force the lubricant in the lubricant-charging chamber F into the pipe f and from thence to the'parts to be lubricated. As a convenient means for controlling the 'air or fluid pressure the pipe 9 may lead to a convenient position for the operativeas, for instance, to the cab of a lo comotive.

Extending from one end of the plug orvalve Dis the stem d, to which is connected the handle it, whereby the valve or plug D may be turned from the position shown in Fig. l to the position shown in Fig. 3, and vice versa. It is obvious, of course, that the handle it may extend to any convenient position, so as to be in convenient location for manipulation by the operative, and, like the pipe g, may extend to the cab of the locomotive, .if desired, all as is obvious and well understood.

Disposed between the cap 6' and the end of the plug D is a spring H, one end of which is connected at h to the end of the valve or plug D, and the otherend is connected at h with the stationary casing or other stationary part. The function of this spring is twofold. By its expansive force exerted between the cap a and the end of the plug or valve D the tapering walls of the plug or valve and easing are maintained in close intimate working contact, and thus form a perfect joint between the plug and its casing. By the positive connection of the spring with the valveD and the casing or stationary part E it will [be noted that when the valve or plug D is turned in position to forcibly discharge the lubricant from the lubricant-charging chamber F into and through the pipe f and the handle it is freed that the force of this spring will at once return the plug or valve D to its original position in Fig. 1, thereby cutting off communication between the pipe connections g and f and maintaining the valve in position shown in Fig. 1 to receive a supply of lubricant from the reservoir A.

The operation of the device will be apparent from the above description. For instance, the parts being in the normal position shown by Fig. 1 and it being desired to supply lubricant to the parts to be lubricated the handle h, operative from the cab of the locomotive or other convenient position, is turned until the lubricant-charging chamber F is brought into register with and. connects the pipes g and f, whereupon air or other fluid pressure being introduced into pipe 9 will force the charge of lubricant into the other pipe f to the parts to be lubricated, whereupon releasing the handle l1 will permit the spring H to exert its torsional effect and return the valve or plug D to its normal position, (shown in Fig. 1,)the expansive force of the spring at all times holding the plug or valve D properly seated in its casing to form a close joint therewith.

It is obvious, of course, that the details of the construction may be varied somewhat without departing from the inventionas, for instance, the casing E may not necessarily be formed of a single piece, although that is the preferred construction.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In a lubricating device, the combination of a reservoiror cup, a valve-casing connected thereto and provided with atapering bore, a valve or plug conforming withthe bore of the casing and having a lubricant-charging chamber extending therethrough, a pipe for the introduction of air or fluid pressure connected to one side of said casing, a second pipe for transmission of the charge of lubricant connected to the opposite side of said casing, means for holding the plug or valve with the lubricant-charging chamber in position to receive a supply of lubricant and devices for turning said plug or valve to shut off communication between the lubricantcharging chamber and reservoir or cup, and bring the said chamber into register with the said pipes to thereby forcibly discharge a definite supply of lubricant to the parts to be lubricated.

2. In a lubricating device, the combination of a reservoir or cup, a valve-casing connected thereto, and provided with a tapering bore, a valve or plug conforming with the bore of the casing and having a lubricant-charging chamber extending therethrough, a pipe connected to said casing for introducing a blast of air or other fluid, an oppositely-disposed pipe connected to said casing for transmitting the charge of lubricant, means for turning the valve or plug to bring the lubricant-charging chamber into register with said oppositelydisposed pipes, and a spring for returning the Valve or plug to its original position when said means is released.

3. In a lubricating device, alubricant reservoir or cup, a valve-casing connected thereto and having a tapering bore, a valve or plug fitting the bore of the casing and having a lubricant-charging chamber extending therethrough, means for positively turning said valve or plug in the casing and a spring disposed between one end of the casing and valve or plug and connected to said parts, said spring acting to force the valve lengthwise of the casing to form a proper joint between the valve and casing and to return the valve to its original position when the means for positively turning said valve or plug is released.

4C. In a lubricating device, a reservoir or cup, a casing having a tapering bore connected thereto, a valve formed with a taper corresponding to the taper of the bore of the casing and provided with a lubricant-charging chamber extending therethrough, a pipe connected to said casing for introducing a blast of air or other fluid, an oppositely-disposed pipe connected to said casing for transmitting the charge of lubricant, a handle for positively turning said Valve or plugto close connection between the reservoir or cup and the lubricant-charging chamber, and a spring disposed between one end of the casing and plug or valve to maintain a close joint between said parts, one end of the spring being connected to the valve and the other end to the casing to act by its torsional force to return the valve to its initial position when the handle is released.

In testimony whereof I aflix my signature in presence of two witnesses.

BENJAMIN F. CAMPBELL.

Witnesses:

J. E. CoATEs, B. E. Score 

